What a difference 3/4 of an inch makes!!
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  1. #1
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    What a difference 3/4 of an inch makes!!

    Iíve been on my Litespeed for over a year now. Three to four times a week. Minimum ten miles each ride (after work), averaging fifteen to twenty miles. Iíve spent a lot of time riding this bike, and the Ridley Noah before it. The Ridley has a seat mast that had to be cut, and a seat clamp that offered little by way of adjustment.

    Two days ago I went on a ride and noticed for the first time that my knees were going outward ever so slightly on the upstroke. Yesterday, before riding out, I raised the saddle by roughly 3/4 of an inch, and boy.... what a difference did it make in every aspect of the ride. It never occurred to me after this much time that my saddle was too low. Mate it wasnít even too low, per se. But I raised it anyway. And it was a fairly small change in saddle height, but the difference in ride and my performance was profound. I rode markedly faster in climbs and on level road. And, as you can imagine, my upper body was positioned better.

    So, check your saddle heights, boys. I cannot believe such a small change could make such a big difference.

  2. #2
    'brifter' is f'ing stupid
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    3/4" is not small, that's HUGE.
    #promechaniclife

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    You still may be way off!
    When riding, take your foot out of the pedal, put your heel on the pedal and soft pedal, when your leg is just slightly bent at the bottom of the stroke, you are getting really close.
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    Thatís what she said.

  5. #5
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    What a difference 3/4 of an inch makes!!

    Living in the Midwest, Iíve learned to drop my saddle a bit in the fall before putting my bike away for the winter. After a few rides in the spring I can slowly raise it back up a bit. I wrap a bit of electrical tape around the seat post to maintain a reference point.


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    Quote Originally Posted by duriel View Post
    You still may be way off!
    When riding, take your foot out of the pedal, put your heel on the pedal and soft pedal, when your leg is just slightly bent at the bottom of the stroke, you are getting really close.
    Yep.

    Meaning, put heel on the pedal straight legged, then notice when pedaling on the balls of the feet, a slight bend in the leg at the bottom of the stroke? The fit kit prescribed 75 degrees.

    Congratulations, Waspinator. Very possible your seat was 3/4" too low. Seat posts frequently slip down in the seat tube over a season or two, so slowly, rider doesn't even notice. Racers check them all the time.

    Just be nice to the knees working in their glorious freedom!

  7. #7
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    Quote Originally Posted by Fredrico View Post
    Yep.

    Meaning, put heel on the pedal straight legged, then notice when pedaling on the balls of the feet, a slight bend in the leg at the bottom of the stroke? The fit kit prescribed 75 degrees.

    Congratulations, Waspinator. Very possible your seat was 3/4" too low. Seat posts frequently slip down in the seat tube over a season or two, so slowly, rider doesn't even notice. Racers check them all the time.

    Just be nice to the knees working in their glorious freedom!
    This is why I keep a wrap of tape on my seat post, when I see it starting to bunch up I raise the post that little bit to smooth the tape back. The tape makes a good visual reference.
    Too old to ride plastic

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    ...she said "let me have that thing". .....
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    Let's also remember than different shoes have different sole thicknesses. I found that the optimal seatpost position is 1/4 inch different between summer and winter shoes. And believe me, I can feel 1/4 inch difference. As CX said, 3/4 inch is huge.

    I have two fairly unobtrusive markings I made on my seatpost with a knife.
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  10. #10
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    Quote Originally Posted by Fredrico View Post
    Yep.

    Meaning, put heel on the pedal straight legged, then notice when pedaling on the balls of the feet, a slight bend in the leg at the bottom of the stroke? The fit kit prescribed 75 degrees.

    Congratulations, Waspinator. Very possible your seat was 3/4" too low. Seat posts frequently slip down in the seat tube over a season or two, so slowly, rider doesn't even notice. Racers check them all the time.

    Just be nice to the knees working in their glorious freedom!
    I have to confess... I had no idea that happened - ie seatposts slipping down. I always tighten my clamp thoroughly. Thatís good to know.

  11. #11
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    Quote Originally Posted by Waspinator View Post
    I have to confess... I had no idea that happened - ie seatposts slipping down. I always tighten my clamp thoroughly. Thatís good to know.
    Some carbon frames are known to be prone to seatpost slipping. Carbon paste helps stop that.
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  12. #12
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    Quote Originally Posted by Lombard View Post
    Let's also remember than different shoes have different sole thicknesses. I found that the optimal seatpost position is 1/4 inch different between summer and winter shoes. And believe me, I can feel 1/4 inch difference. As CX said, 3/4 inch is huge.

    I have two fairly unobtrusive markings I made on my seatpost with a knife.

    Yep. Winter garb, specifically tights and winter shoes, have me lowering my saddle just a bit come cold weather.
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    Quote Originally Posted by xxl View Post
    Yep. Winter garb, specifically tights and winter shoes, have me lowering my saddle just a bit come cold weather.
    Really? I find I have to raise the saddle with winter shoes since the soles are thicker.

    The extra layer of tights is insignificant.
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  14. #14
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    I fine tuned my seat height, horizontal adjustment, and cleat position -- millimetres at a time -- to rid myself of a chronic left knee ITBS problem.

    If I moved the seatpost 3/4 now, I'd probably end up needing a cane to walk.

  15. #15
    xxl
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    Quote Originally Posted by Lombard View Post
    Really? I find I have to raise the saddle with winter shoes since the soles are thicker.

    The extra layer of tights is insignificant.


    Insignificant? Remember, we're talking a situation where a fraction of an inch is "huge."

    I agree, tights aren't that much of a change, but I notice...and once I do, well....
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  16. #16
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    Quote Originally Posted by xxl View Post
    Insignificant? Remember, we're talking a situation where a fraction of an inch is "huge."

    I agree, tights aren't that much of a change, but I notice...and once I do, well....
    Interesting. I don't notice anything with tights. Shoes, definitely.
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  17. #17
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    Quote Originally Posted by xxl View Post
    Insignificant? Remember, we're talking a situation where a fraction of an inch is "huge."

    I agree, tights aren't that much of a change, but I notice...and once I do, well....
    Quote Originally Posted by Lombard View Post
    Interesting. I don't notice anything with tights. Shoes, definitely.
    Are you two talking padded tights or non padded worn over padded shorts? One makes a difference, the other, not so much.
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  18. #18
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    Quote Originally Posted by velodog View Post
    Are you two talking padded tights or non padded worn over padded shorts? One makes a difference, the other, not so much.
    I wear non-padded tights over padded shorts. I wouldn't think either would make much difference.
    "COMPLACENCY IS LETHAL - VOTE in November." - System Shock.

    "With
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  19. #19
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    Quote Originally Posted by Lombard View Post
    I have two fairly unobtrusive markings I made on my seatpost with a knife.
    The Lombard Fit Method for seat height is to make it even with the bars.

    And I hope your seat post is carbon with your knife marks. Great advice again.

  20. #20
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    Quote Originally Posted by rudge66 View Post
    The Lombard Fit Method for seat height is to make it even with the bars.

    And I hope your seat post is carbon with your knife marks. Great advice again.
    My seatpost is alloy. No, I would not recommend doing this with a carbon seatpost. That would be almost as stupid as your posts.
    "COMPLACENCY IS LETHAL - VOTE in November." - System Shock.

    "With
    bicycles in particular, you need to separate between what's merely true and what's important."
    -- DCGriz, RBR.





  21. #21
    'brifter' is f'ing stupid
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    Quote Originally Posted by rudge66 View Post
    The Lombard Fit Method for seat height is to make it even with the bars.

    And I hope your seat post is carbon with your knife marks. Great advice again.
    You should find another forum to troll, really. Your crap is not even fun, it's just tiring.
    #promechaniclife

  22. #22
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    Quote Originally Posted by cxwrench View Post
    3/4" is not small, that's HUGE.
    I think it was a 3 mm change to Bernard Hinault's seat height that resulted in knee surgery for him.

  23. #23
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    Quote Originally Posted by Kerry Irons View Post
    I think it was a 3 mm change to Bernard Hinault's seat height that resulted in knee surgery for him.
    3mm is about one tenth of an inch. I can definitely feel one quarter of an inch. One tenth could conceivably make a difference.
    "COMPLACENCY IS LETHAL - VOTE in November." - System Shock.

    "With
    bicycles in particular, you need to separate between what's merely true and what's important."
    -- DCGriz, RBR.





  24. #24
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    Quote Originally Posted by cxwrench View Post
    You should find another forum to troll, really. Your crap is not even fun, it's just tiring.
    The Prairie Dog Method:
    Quote Originally Posted by Lombard
    I have my road bikes adjusted so the bars and saddle are pretty much level with each other. ...it's an easy enough fix to flip the stem and tilt the bars up a little.
    Sorry, but he (Lombard) is not properly fit to a road bike and unable to evaluate its potential. This would be immediately apparent on a group ride... before we even leave the parking lot.
    Last edited by rudge66; 2 Weeks Ago at 03:20 PM.

  25. #25
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    Quote Originally Posted by rudge66 View Post
    The Prairie Dog Method:

    Sorry, but he (Lombard) is not properly fit to a road bike and unable to evaluate its potential. This would be immediately apparent on a group ride... before we even leave the parking lot.
    You might be surprised when I pass you up that 15% grade.
    "COMPLACENCY IS LETHAL - VOTE in November." - System Shock.

    "With
    bicycles in particular, you need to separate between what's merely true and what's important."
    -- DCGriz, RBR.





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